Abstract: There is disclosed a sliding sheet material for high-temperature use which can be easily produced, and has satisfactory durability while maintaining excellent properties of exfoliated graphite such as cushioning properties and heat-resistance. The sliding sheet material includes a sheet-shaped exfoliated graphite, and at least two layers of wire net embedded in the exfoliated graphite sheet, the wire net layers being disposed substantially parallel to each other. The wire net layers are partially exposed to obverse and reverse sides of the exfoliated graphite. The satisfactory durability of the sliding sheet material is achieved by the exposed wire nets, and the sliding sheet material can be easily produced, and exhibits excellent cushioning properties and heat resistance.

Abstract: A rotary shaft is supported by a bearing surface of a bush body. The diameter of the rotary shaft is slightly smaller than that of the bearing surface of the bush body, thus defining a clearance therebetween. On both end sides of the bush body, seal portions elastically engage with the peripheral surface of the rotary shaft, and the outer surfaces of the seal portions extend within a range of thickness of the bush body so that end surfaces of the bush body and end surfaces of the seal portions are in contact with each other. Consequently, both sides of the clearance are sealed by inside surfaces of the seal portions.

Abstract: A bush is divided at a part of the circumference by a slit, so that at least two contacting portions provided on both end sides of the bush in the axial direction have elasticity in the radial direction, and are elastically brought into contact with the inner surface of a housing due to the elasticity. At least one elastic engagement portion between the at least two contacting portions has elasticity in the radial direction similar to the at least two contacting portions. The elastic engagement portion elastically engages with a rotary shaft which is inserted in the bush, thereby supporting the rotary shaft. Consequently, the rotary shaft rotates without vibration of the axis thereof.

Abstract: A lens frame supporting mechanism includes a spherical surface that is a specified region of the outer surface of a lens frame for holding an optical system and that acts as a driven and supported member. The spherical surface is supported by spherical rotators serving as supporting driving members. The lens frame is driven to rotate by means of the spherical rotators that are in contact with the lens frame, thus shifting the orientation of the optical axis of the optical system. The lens frame is rotated while being restrained from rotating about the optical axis by means of a guide ditch and a guide pin formed in the spherical surface of the lens frame. This lens frame supporting mechanism has materialized a simple supporting mechanism and a compact lens frame, and realizes a reduced load to a rotation actuator.

Abstract: A governor device for a vehicle having a speed detecting device adapted for detecting the speed of the input shaft of a transmission which is adapted to conduct a shift between power transmitting stage and neutral stage. The input shaft of the transmission is connected to the engine through an automatic stepless speed changer. The speed detecting means may be, for example, a centrifugal governor device meshing with the input shaft of the transmission.